<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
    <style>
        .container{
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            background-color: grey;
            border-radius: 1rem;
            gap: 1rem;
            padding: 2rem;
        }
        .cell{
            height: 200px;
            width: 200px;
            border-radius: inherit;
            background-color: white;
        }
        .cell:nth-child(1){
            background-color: red;
        }
        .cell:nth-child(12){
            background-color: green;
        }

        .cell:nth-child(15){
            background-color: cyan;
            animation: all 4s ease-in-out;
        }
        .cell:nth-child(14){
            background-color: indigo;
            transition: transform 0.3s linear;
        }
        .cell:nth-child(14):hover{
            transform: scale(2, 2);
            background-color: darkcyan;;
        }
        @keyframes all {
            10%{
                opacity: 0;
            }
            100%{
                opacity: 1;
            }
        }
    </style>
</head>
<body>
    <div class="container">
        <div class="cell"></div>
        <div class="cell"></div>
        <div class="cell"></div>
        <div class="cell"></div>
        <div class="cell"></div>
        <div class="cell"></div>
        <div class="cell"></div>
        <div class="cell"></div>
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        <div class="cell"></div>
        <div class="cell"></div>
        <div class="cell"></div>
        <div class="cell"></div>
        <div class="cell"></div>
        <div class="cell"></div>
        <div class="cell"></div>
        <div class="cell"></div>
        <div class="cell"></div>
        <div class="cell"></div>
        <div class="cell"></div>
        <div class="cell"></div>
        <div class="cell"></div>
        <div class="cell"></div>
        <div class="cell"></div>
        <div class="cell"></div>
        <div class="cell"></div>
        <div class="cell"></div>
        <div class="cell"></div>
    </div>
</body>
</html>